secwatch.observer — SEC 8-K summary
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Issuer:     ESS Tech, Inc. (GWH)
CIK:        0001819438
Form:       8-K
Filed at:   2026-04-15T23:59:59+00:00
Accession:  0001819438-26-000022
Event type: leadership
Sentiment:  neutral
Materiality: 0.25
Item codes: 5.02
LLM model:  deepseek-v4-flash:cloud@v2

Director Michael Niggli resigns from ESS Tech board, effective May 29, 2026
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- Michael Niggli notified resignation from Board, Audit Committee, and Nominating and Corporate Governance Committee.
- Resignation effective as of the date of the 2026 annual meeting of stockholders on May 29, 2026.
- Resignation not due to any disagreement with the Company regarding operations, policies, or practices.
- Niggli served as Founding Chairman of the Company.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1819438/000181943826000022/0001819438-26-000022-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1819438/000181943826000022/wk-20260410.htm
  HTML page:      https://secwatch.observer/filing/0001819438-26-000022

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